K so went on Angie's List, decided to call Blue Dot - the guy came out and said the control panel on my furnace is going Alzheimers on me. It's 18 years old - average lifespan when I looked was 16-20 years so I'm not surprised. He got it to light and we're up to 68...if it poops out again, going to get a second opinion from elsewhere just to be sure. Blue Dot is coming to give me estimates on replacing furnace and possibly AC at the same time on Wednesday. Anyone in the Balt-Bel Air MD area have recommendations of who to call? Who NOT to call? Or any other HVAC-relevant advise? I'm askin', and a-listenin'...